Description:
------------
error_reporting sets to 0 after @

Reproduce code:
---------------
<?
	error_reporting(E_ALL);

	function a()
	{
		@$a = 1;	
	};

	var_dump(error_reporting());

	a();

	var_dump(error_reporting());
?>

Expected result:
----------------
int(2047)
int(2047)

Actual result:
--------------
int(2047)
int(0)